Abstract: Provided in the present invention are user equipment and a method thereof, and a base station and a method thereof. The method in user equipment comprises: receiving a switching MAC CE from a base station; and activating and/or deactivating an RLC entity and/or a logical channel associated with a bearer that supports the PDCP duplication based on the switching MAC CE.

Abstract: A data transmission method, wherein when small data arrives, user equipment (UE) in a radio resource control inactive state RRC_INACTIVE can establish a communication with a base station without entering an RRC connected state, so as to perform small data transmission (SDT). An RNAU timer for controlling a periodic radio access network (RAN) based notification area update is set for the base station. For the SDT, an SDT timer for SDT small data transmission is set. A small data transmission data radio bearer (DRB) is configured for the user equipment. When an RRC resume procedure is triggered by arrival of data at the DRB, a high layer triggering small data transmission, or the like, the user equipment starts the SDT timer.

Abstract: Embodiments of the present invention provide a group communication method, system, group server, and group member device. A group server receives notification messages sent by a group member device, aggregates, according to an address of a subscription device, the notification messages destined for the same subscription device, and sends a notification message obtained after aggregation to the subscription device.

Abstract: The present disclosure provides a method used in user equipment (UE). The method comprises: detecting that a radio link control (RLC) entity associated with a packet duplication bearer or packet duplication split bearer has reached a predetermined maximum number of retransmissions; and determining that a radio link associated with the RLC entity is unavailable or fails based on whether a cell associated with the RLC entity is a special cell (SpCell) or whether a cell group associated with the RLC entity includes an SpCell.

Abstract: Provided in the present disclosure are a handover information reporting method and user equipment. The handover information reporting method includes: successfully executing, by user equipment (UE), a handover from a source base station to a target base station; and transmitting, by the UE, to the target base station a radio resource control (RRC) message including handover report information, the handover report information including an information element for indicating a radio link control (RLC) retransmission status, and the RLC retransmission status being a maximum value of a count value RETX_COUNT of an RLC layer of the UE for recording the number of retransmissions of an RLC service data unit (SDU) or an RLC protocol data unit (PDU).

Abstract: Provided in the present invention are a method performed by user equipment, and user equipment. The method performed by user equipment is a method in which UE, after receiving a command for activating an SCell, triggers a PHR, the method including the following steps: receiving, by UE, an activation command for activating an SCell; when the UE receives the activation command, determining, by the UE, the state of the SCell; and when the UE determines that the SCell is in an activated state before the activation command is received, determining, by the UE, the type of an active BWP of the SCell; and when the UE determines that the type of the active BWP is a non-dormant BWP, triggering, by the UE, a PHR.

Abstract: The present disclosure provides a method for reporting multi-connection transmission capability, a method for configuring multi-connection transmission modes, a method for preventing retransmission of data, and corresponding user equipment and a base station which support multi-connection transmission. The method for reporting a multi-connection transmission capability comprises: receiving, from a base station, a UE capability query message, the UE capability query message being used to request the UE to send a wireless access capability of the UE for accessing an access network; generating a UE capability information message in response to the received UE capability query message, the UE capability information message being used to indicate the wireless access capability of the UE for accessing the access network and comprising bearer types and/or transmission manners supported by the UE; and sending to the base station the UE capability information message.

Abstract: Provided is a method performed by user equipment (UE), including: detecting a synchronization signal/physical broadcast channel block, i.e. an SS/PBCH block; determining, according to the detected SS/PBCH block and from a master information block (MIB), whether a base station transmitting the SS/PBCH block supports reduced capability UE; and if the base station supports reduced capability UE, determining a control resource set and a physical downlink control channel (PDCCH) monitoring occasion of a PDCCH search space set for receiving a reduced capability version of system information block 1, i.e. SIB1.

Abstract: Provided in the present invention are a method performed by user equipment, and user equipment. The method performed by user equipment is a method for deactivating an SCG in a process in which UE configured with dual connectivity or multi-connectivity communicates with an MCG and the SCG. The MCG is a serving cell group controlled by an MN, and the SCG is a serving cell group controlled by an SN.

Abstract: The present disclosure provides a method executed by user equipment, including: receiving, by a radio link control “RLC” entity, a service data unit “SDU” from an upper layer. The method further includes: generating, by the RLC entity, a protocol data unit “PDU,” the PDU including at least a part of the received SDU, and a sequence number of the PDU being set according to a send state variable. The method further includes: updating, by the RLC entity, the send state variable. Furthermore, the present disclosure further provides corresponding user equipment.

Abstract: Provided in the present disclosure are user equipment and a method thereof, and a base station and a method thereof. The method performed by the user equipment includes: receiving a radio resource control (RRC) message from a base station, wherein the RRC message includes information related to an activation configuration of packet data convergence protocol (PDCP) duplication of a radio bearer and/or associated radio link control (RLC) entities; and performing the activation configuration of the PDCP duplication and/or the associated RLC entities on the basis of the information. Thus, the communication efficiency and reliability of a wireless communication system can be improved.

Abstract: Provided is a base station, comprising: a configuration unit, configured to configure a transmission waveform of a User Equipment (UE) for uplink transmission; and a transmission unit, configured to transmit information related to the configuration to the UE. The configuration unit is configured by using any of the following modes: physical layer signaling, a Random Access Response (RAR) message of Media Access Control (MAC), and Radio Resource Control (RRC) signaling. The present application also provides a user equipment (UE) and a corresponding method.

Abstract: The present disclosure provides a method performed by user equipment, and user equipment. The method performed by user equipment includes: if a medium access control (MAC) entity is configured with a configured uplink grant and if the configured uplink grant is activated, then determining whether the MAC entity is configured to use the configured uplink grant to transmit a MAC PDU, namely a MAC protocol data unit, obtained for a de-prioritized configured uplink grant; and if the MAC entity is configured to use the configured uplink grant to transmit the MAC PDU, then delivering the configured uplink grant to a hybrid automatic repeat request (HARQ) entity. In this way, the problem involving transmission of a de-prioritized MAC PDU stored in a HARQ process buffer can be solved, thereby improving the communication efficiency and reliability of a wireless communication system.

Abstract: The present disclosure provides a method executed by user equipment, the method including: submitting, by a transmitting side of an Acknowledged Mode Radio Link Control (AM RLC) entity, to a lower layer an Acknowledged Mode data Service Data Unit (AMD PDU) including a poll. The method further includes: updating, by the RLC entity, a poll send state variable to the highest sequence number of an Acknowledged Mode Radio Link Control Service Data Unit (RLC SDU) submitted and awaiting acknowledgments. Furthermore, the present disclosure further provides corresponding user equipment.

Abstract: The present disclosure provides a method for processing carrier activation at user equipment (UE) and a corresponding device. The method implemented at the user equipment comprises: acquiring an indication related to deactivation of a currently activated carrier, wherein the carrier is a carrier in a carrier group consisting of a plurality of carriers; and if a random access procedure is ongoing, then ignoring the indication.

Abstract: Provided in the present disclosure are user equipment and a method thereof, and a base station and a method thereof. A method performed by user equipment includes: receiving, from a base station, a medium access control control element (MAC CE) used to indicate an activation configuration of packet data convergence protocol (PDCP) duplication of a data radio bearer (DRB) and/or an associated radio link control (RLC) entity; and performing the activation configuration of the PDCP duplication and/or the associated RLC entity based on the MAC CE. Thus, the communication efficiency and reliability of a wireless communication system can be improved.

Abstract: According to the present invention, a method performed by user equipment (UE) is proposed, comprising: identifying, for a received uplink grant, a hybrid automatic repeat request (HARQ) process corresponding to the uplink grant; determining whether the uplink grant is used for a new transmission or a retransmission; and in the case of determining that the uplink grant is used for the new transmission, for an uplink grant with physical uplink shared channel (PUSCH) duration not overlapping with PUSCH duration of another uplink grant, or an uplink grant with PUSCH duration only overlapping with PUSCH duration of another uplink grant with a lower priority, or a dynamic uplink grant with PUSCH duration not overlapping with PUSCH duration of another uplink grant having a higher priority, if a corresponding MAC PDU (Media Access Control protocol data unit) is obtained, then instructing the identified HARQ process to trigger the new transmission of the MAC PDU.

Abstract: A method of system information transmissions performed by a user equipment (UE) includes receiving a system information (SI) scheduling information list for a plurality of SI messages and a random access resource list for a plurality of SI requests via a system information block type 1 (SIB1), and determining, when a plurality of random access resource entries exist in the random access resource list for the plurality of SI requests including a first SI request and a second SI request, that a first entry of the plurality of random access resource entries in the random access resource list for the first SI request corresponds to a first entry in the SI scheduling information list and that a second entry of the plurality of random access resource entries in the random access resource list for the second SI request corresponds to a second entry in the SI scheduling information list.

Abstract: According to the present invention, a method performed by user equipment (UE) is provided, comprising: receiving dynamic uplink grant for a medium access control (MAC) entity; determining, for the received dynamic uplink grant, whether a first configuration condition is satisfied; and if the first configuration condition is satisfied, delivering the uplink dynamic grant to a hybrid automatic repeat request (HARD) entity.

Abstract: Provided in the present disclosure is a method in user equipment, the method comprising: receiving an RRC message for a cell restricted for a logical channel associated with a packet duplication bearer, wherein the cell restricted for the logical channel associated with the packet duplication bearer is indicated by an indicator of a data type of a bit string, the least significant bit of the bit string corresponds to a serving cell with index 0, and the next bit corresponds to a serving cell with index 1, and so on, and a bit that corresponds to an SpCell in a bit string corresponding to one logical channel associated with the packet duplication bearer is set to 0; and transmitting data for the logical channel on the cell corresponding to the bit set to 0 in the bit string corresponding thereto.